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#3514298 - 02/08/12 09:06 AM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 09/02/11
Posts: 397
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Hi, Hpasp, just reloading a question: Is that true? Could you check it with your sources?
Second note said that in "Boynaya rabota" mode and switched on "RS" ("AS") on "I62" panel, changing from 150 to 75 km mode goes automatic...
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#3514377 - 02/08/12 10:52 AM
Re: SAM Simulator
[Re: piston79]
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Member
Registered: 12/31/09
Posts: 951
Loc: Hungary, Europe
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Second note said that in "Boynaya rabota" mode and switched on "RS" ("AS") on "I62" panel, changing from 150 to 75 km mode goes automatic...
Yes, similarly to the Neva.
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#3514414 - 02/08/12 11:42 AM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 09/02/11
Posts: 397
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Now I must ask is that going to change in the next version? Personnaly I don't mind if it stays like it is now...
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#3514472 - 02/08/12 12:44 PM
Re: SAM Simulator
[Re: piston79]
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Member
Registered: 09/02/11
Posts: 397
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Subsonic target UPR point is closer to the target. It can be less than 4 degree, depending on the P. Supersonic target UPR point is further to the target. It can be more than 4 degree, but the system allows the missile max 4 degree. When the missile is flying at less than 4 degree, than it is directly goes towards the UPR point. When the missile is flying at 4 degree, than the UPR point is at probably more than 4 degree, just the system limits its lead angle.This guidance method is simply UPR, just adding a Constant "K" into elevation, depending the distance of the missile to the range boresight. If the missile - boresight distance is larger than 10km, it adds 1.2 degree to the elevation boresight. From 10km, it gradually reduces this Constant to 0 degree. (at 5km it is 0.6 degree) Seems that in ver. 923.0, in jamming enviroment, K became like T/T with 1.2 degrees, and UPR is just like T/T. Still they react on distance boresight. If UPR is based on real target speed, (not angular speed) of the target and Parameter (this should be important only for the azymuth lead) against SNR,I believe - based ot what I've learned from this topic that UPR/K behavior in 923.3 is WRONG due to denial of speed and parameter information because of active jaming and must be corrected. I would be glad if anybody shares his own observations. 
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#3514519 - 02/08/12 01:36 PM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 09/02/11
Posts: 397
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I think I find a bug...  This is AAR (on the picture you can see the seccond salvo): Asuluk training ground.
Practice target: RM-205 Kunica simulating F-104 Starfighter
SA-75M Dvina
00:30, Practice target RM-205 Kunica simulating F-104 Starfighter launched
57:06, V-750VMU 11DMU Missile launched on Channel-1 Target distance: 68km Target azimuth: 70° Target elevation: 16° Target altitude: 19,6km SNR mode: 110km Missile guidance method: K (Half Lead Elevated By Constans)
57:14, V-750VMU 11DMU Missile launched on Channel-2 Target distance: 62km Target azimuth: 71° Target elevation: 17° Target altitude: 19,1km SNR mode: 55km Missile guidance method: K (Half Lead Elevated By Constans)
57:20, V-750VMU 11DMU Missile launched on Channel-3 Target distance: 57km Target azimuth: 71° Target elevation: 18° Target altitude: 18,5km SNR mode: 55km Missile guidance method: UPR (Half Lead)
58:11, Missile exploded on Channel-3 Practice target RM-205 Kunica simulating F-104 Starfighter killed by SAM. (miss distance: 15m)
58:15, V-750VMU 11DMU Missile launched on Channel-1 Target distance: 51km Target azimuth: 80° Target elevation: 33° Target altitude: 28,5km SNR mode: 55km Missile guidance method: K (Half Lead Elevated By Constans)
58:22, V-750VMU 11DMU Missile launched on Channel-2 Target distance: 51km Target azimuth: 81° Target elevation: 35° Target altitude: 29,8km SNR mode: 55km Missile guidance method: K (Half Lead Elevated By Constans)
58:28, V-750VMU 11DMU Missile launched on Channel-3 Target distance: 51km Target azimuth: 83° Target elevation: 37° Target altitude: 31,4km SNR mode: 55km Missile guidance method: UPR (Half Lead)
58:55, Missile exploded on Channel-1 Practice target RM-205 Kunica simulating F-104 Starfighter killed by SAM. (miss distance: 4m)
58:58, Missile exploded on Channel-2 Practice target RM-205 Kunica simulating F-104 Starfighter killed by SAM. (miss distance: 5m)
59:04, Missile exploded on Channel-3 Practice target RM-205 Kunica simulating F-104 Starfighter killed by SAM. (miss distance: 17m)
Total, SNR On Air Time: 3min 16sec Note, that the target is not tracket on distance at the moment of impacts, and the guidance method is K and UPRI've tracked on beta, epsilon and distance 'till launching of the first missile, than switched off the distance tracking... Radiofuse activation mode - "11 seconds". It looks like system "memorized" target speed and path, and adjust missiles to the target, even when not tracked on distance... It coudn't be because it is trackin on last known delta, right? Because I switched off tracking, not ANTENA..? I've tried in Ustka also, and hit an AA missile from MiG-21...  Edit: Check this one too: Asuluk training ground.
Practice target: RM-207 Sobol simulating F-4 Phantom
SA-75M Dvina
00:30, Practice target RM-207 Sobol simulating F-4 Phantom launched
44:52, V-750VMU 11DMU Missile launched on Channel-1 Target distance: 100km Target azimuth: 77° Target elevation: 16° Target altitude: 27,5km SNR mode: 110km Missile guidance method: K (Half Lead Elevated By Constans)
44:58, V-750VMU 11DMU Missile launched on Channel-2 Target distance: 100km Target azimuth: 77° Target elevation: 16° Target altitude: 28,5km SNR mode: 110km Missile guidance method: K (Half Lead Elevated By Constans)
45:06, V-750VMU 11DMU Missile launched on Channel-3 Target distance: 100km Target azimuth: 77° Target elevation: 16° Target altitude: 29,1km SNR mode: 110km Missile guidance method: UPR (Half Lead)
45:53, Missile exploded on Channel-3 Practice target RM-207 Sobol simulating F-4 Phantom killed by SAM. (miss distance: 60m)
45:58, V-750VMU 11DMU Missile launched on Channel-1 Target distance: 100km Target azimuth: 80° Target elevation: 24° Target altitude: 42,1km SNR mode: 55km Missile guidance method: K (Half Lead Elevated By Constans)
46:04, V-750VMU 11DMU Missile launched on Channel-2 Target distance: 100km Target azimuth: 80° Target elevation: 26° Target altitude: 44,8km SNR mode: 55km Missile guidance method: K (Half Lead Elevated By Constans)
46:10, V-750VMU 11DMU Missile launched on Channel-3 Target distance: 100km Target azimuth: 81° Target elevation: 27° Target altitude: 46,5km SNR mode: 55km Missile guidance method: UPR (Half Lead)
46:32, Missile exploded on Channel-1 Practice target RM-207 Sobol simulating F-4 Phantom killed by SAM. (miss distance: 32m)
46:37, Missile exploded on Channel-2 Practice target RM-207 Sobol simulating F-4 Phantom killed by SAM. (miss distance: 8m)
46:43, Missile exploded on Channel-3 Practice target RM-207 Sobol simulating F-4 Phantom killed by SAM. (miss distance: 3m)
Total, SNR On Air Time: 3min 16sec I don't track it on distance at all... Even not using CU (IADS) to acquire (to check that CU didn't translate any data to SA-75m/mk). Tommorow I'll do some tests again, but definitelly something is wrong...
Edited by piston79 (02/08/12 01:53 PM)
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#3514581 - 02/08/12 02:51 PM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 12/27/11
Posts: 288
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Question about Piston79?
What's the error I do not understand you can explain!
What's up with the method of K or T / T is not so I do not quite understand!
What are the problems with the F-104 and F-4 Phantom!
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#3514755 - 02/08/12 08:27 PM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 01/24/12
Posts: 123
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this question for Hpasp! when using Narrow beam, in volhov, and using sector search, exactly how many degree scan the beam in vertical and in horizontal move, it seems no more than 5°, true ?That is a special target search method, developed against stealth targets. (As far as I remember, it was not discussed before.) This method is called "Elliptical Search", and by using it, you can search a 5°x 5° area with the increased power output of the Narrow Beam. I have noticed that due to movement in same times of the two axes -horizontal and vertical- it can't result on this cropping sequences ...  but this may be more logic like this cropping horizontal move + vertical move = real trajectory ( elliptical Move !) is that confirmed? ...
Edited by wasfa (02/08/12 11:28 PM)
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#3514814 - 02/09/12 12:34 AM
Re: SAM Simulator
[Re: Hpasp]
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Member
Registered: 06/16/11
Posts: 174
Loc: Poland
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